| Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere | |
Fangping Yan1,2,3; Mika Sillanpää1; Shichang Kang3,4,5; Kelly Sue Aho6; Bin Qu7; Da Wei8 ; Xiaofei Li3,9; Chaoliu Li2,4; Peter A. Raymond6
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| 2018 | |
| Source Publication | JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
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| ISSN | 2169-8953 |
| EISSN | 2169-8961 |
| Volume | 123Issue:7Pages:2091-2103 |
| Subtype | Article |
| Contribution Rank | 8 |
| Abstract | Lakes play an important role in the global carbon cycle, and littoral zones of lakes are potential hotspots of greenhouse gas production. In this study, we measured the partial pressures of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) in the littoral zones of 17 lakes on the Tibetan Plateau. The littoral zones of lakes on the Tibetan Plateau were supersaturated and acted as sources of CO2, CH4, and N2O to the atmosphere. The average partial pressures of CO2, CH4, and N2O in the surface lake water were 664.8 +/- 182.5, 139.8 +/- 335.6, and 0.3 +/- 0.1 mu atm, respectively. The average diffusive fluxes (and uncentainty intervals) of these three gases were 73.7 (0.9-295.3) mu mol . m(-2) . day(-1), 5.2 (0.0008-45.9) mu mol . m(-2) . day(-1), and 6.5 (0.07-20.9) mu mol . m(-2) . day(-1), respectively. The diffusive fluxes of CO2 in lakes were significantly correlated with dissolved organic carbon, dissolved organic nitrogen, salinity, and water temperature. The diffusive fluxes of N2O were significantly correlated with lake water depth. However, no relationships were found between environmental factors and the CH4 diffusive flux at the scale of this study. CO2 exchange with the atmosphere from saline lakes was found to be higher than from freshwater lakes with equivalent CO2 concentrations by a factor of 2.5 due to chemical enhancement of the gas transfer velocity. Therefore, further study with enhanced spatiotemporal resolution and breadth is needed to better understand the important role played by lakes on the Tibetan Plateau in both regional and global carbon cycles. |
| DOI | 10.1029/2017JG004379 |
| Indexed By | SCI |
| Language | 英语 |
| Quartile | 2区 |
| TOP | 是 |
| WOS ID | WOS:000450067500005 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/24381 |
| Collection | 山地表生过程与生态调控重点实验室 |
| Corresponding Author | Chaoliu Li |
| Affiliation | 1.Department of Green Chemistry, School of Engineering Science, Lappeenranta University of Technology, Mikkeli, Finland; 2.Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China; 3.State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; 4.Chinese Academy of Sciences, CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China; 5.University of Chinese Academy of Sciences, Beijing, China; 6.Yale School of Forestry and Environmental Studies, Yale University, New Haven, CT, USA; 7.Yale-NUIST Center on Atmospheric Environment, International Joint Laboratory on Climate and Environment Change, Nanjing University of Information Science and Technology, Nanjing, China; 8.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, China; 9.Key Laboratory of Aerosol Chemistry & Physics (KLACP), Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China |
| Recommended Citation GB/T 7714 | Fangping Yan,Mika Sillanpää,Shichang Kang,et al. Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2018,123(7):2091-2103. |
| APA | Fangping Yan.,Mika Sillanpää.,Shichang Kang.,Kelly Sue Aho.,Bin Qu.,...&Peter A. Raymond.(2018).Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,123(7),2091-2103. |
| MLA | Fangping Yan,et al."Lakes on the Tibetan Plateau as Conduits of Greenhouse Gases to the Atmosphere".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 123.7(2018):2091-2103. |
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| Lakes on the Tibetan（567KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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